CA972254A - Backflow preventer valve assembly - Google Patents

Backflow preventer valve assembly

Info

Publication number
CA972254A
CA972254A CA154,589A CA154589A CA972254A CA 972254 A CA972254 A CA 972254A CA 154589 A CA154589 A CA 154589A CA 972254 A CA972254 A CA 972254A
Authority
CA
Canada
Prior art keywords
valve assembly
backflow preventer
preventer valve
backflow
assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA154,589A
Other versions
CA154589S (en
Inventor
Clifford V. Zieg
William Yelich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cla Val Co
Original Assignee
Cla Val Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cla Val Co filed Critical Cla Val Co
Application granted granted Critical
Publication of CA972254A publication Critical patent/CA972254A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • E03C1/106—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves using two or more check valves
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • E03C1/108—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves having an aerating valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/3149—Back flow prevention by vacuum breaking [e.g., anti-siphon devices]
    • Y10T137/3185—Air vent in liquid flow line
    • Y10T137/3294—Valved
    • Y10T137/3331—With co-acting valve in liquid flow path
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/88054—Direct response normally closed valve limits direction of flow

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Check Valves (AREA)
  • Safety Valves (AREA)
CA154,589A 1971-12-06 1972-10-23 Backflow preventer valve assembly Expired CA972254A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00205022A US3837358A (en) 1971-12-06 1971-12-06 Backflow preventer valve assembly

Publications (1)

Publication Number Publication Date
CA972254A true CA972254A (en) 1975-08-05

Family

ID=22760467

Family Applications (1)

Application Number Title Priority Date Filing Date
CA154,589A Expired CA972254A (en) 1971-12-06 1972-10-23 Backflow preventer valve assembly

Country Status (2)

Country Link
US (1) US3837358A (en)
CA (1) CA972254A (en)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996962A (en) * 1976-03-19 1976-12-14 Rockwell International Corporation Backflow preventer and relief valve assembly
US4044787A (en) * 1976-03-19 1977-08-30 Rockwell International Corporation Backflow preventer and relief valve assembly
US4231387A (en) * 1979-01-11 1980-11-04 Chas. M. Bailey Co., Inc. Backflow preventing valve
US4244392A (en) * 1979-02-09 1981-01-13 Griswold Controls Backflow prevention apparatus
US4364408A (en) * 1979-02-09 1982-12-21 Griswold Controls Backflow prevention apparatus
US4506694A (en) * 1982-05-28 1985-03-26 Mueller Co. Relief valve assembly for use with backflow preventers
US4553563A (en) * 1982-05-28 1985-11-19 Mueller Co. Relief valve assembly for use with backflow preventers
DE3864681D1 (en) * 1988-04-26 1991-10-10 Honeywell Braukmann Gmbh FITTING.
US4991655A (en) * 1988-11-10 1991-02-12 Back-Flo Alarm Valve Co., Inc. Combined alarm and back-flow prevention arrangement for fire suppression sprinkler system
US5154232A (en) * 1988-09-21 1992-10-13 Back-Flo Alarm Valve Co., Inc. Combined alarm and back-flow prevention arrangement for fire suppression sprinkler system
US5297635A (en) * 1988-09-21 1994-03-29 Back-Flo Alarm Valve Co., Inc. Combined alarm and back-flow prevention arrangement for fire suppression sprinkler system
AU633513B2 (en) * 1988-09-21 1993-02-04 Back-Flo Alarm Valve Co., Inc. Combined alarm and back-flow prevention arrangement for fire suppression sprinkler system
US5230366A (en) * 1992-07-09 1993-07-27 Griswold Controls Automatic fluid flow control device
US5566704A (en) * 1995-01-06 1996-10-22 Watts Investment Company Backflow preventer and test cock assembly
US5836348A (en) * 1995-12-28 1998-11-17 Appalachian Controls Environmental Pilot controlled blanketing valve
US6675110B2 (en) 2002-01-15 2004-01-06 Watts Regulatoryco. Testing valve assemblies
US8578959B2 (en) 2008-10-03 2013-11-12 B/E Aerospace, Inc. Rinse valve for vacuum waste system
US8997772B2 (en) 2010-09-07 2015-04-07 Zurn Industries, Llc Backflow prevention and method of manufacture
CN102563166B (en) * 2012-01-20 2013-12-25 福州洁博利感应设备有限公司 Electromagnetic valve automatically separating impurities
FR3054609A1 (en) * 2016-07-29 2018-02-02 Plastic Omnium Advanced Innovation & Res VENTILATION FLOW REGULATOR FOR A PRESSURIZED VEHICLE TANK.
US10914412B2 (en) 2018-06-28 2021-02-09 Watts Regulator Co. Backflow prevention assembly having a variable lay-length and orientation
EP3705866B1 (en) 2019-03-08 2023-09-20 WATTS INDUSTRIES ITALIA S.r.l. Differential pressure sensor with magnetic dial
USD944366S1 (en) 2019-03-08 2022-02-22 Watts Industries Italia S.R.L. Static balancing valve
US11795666B2 (en) 2019-05-08 2023-10-24 Watts Regulator Co. Wireless communication system within a mechanical room
US11815424B2 (en) 2019-05-08 2023-11-14 Watts Regulator Co. Backflow prevention system test cock with a fluid sensor
EP3835494A1 (en) 2019-12-10 2021-06-16 Watts Regulator Co. System for monitoring backflow preventer condition
US11585076B2 (en) 2020-01-24 2023-02-21 Watts Regulator Co. Apparatus and method for valve cartridge extraction
US11719352B2 (en) 2020-08-17 2023-08-08 Watts Regulator Co. Check cover assemblies for backflow prevention assemblies with integrated test cock protection shroud
US11773992B2 (en) 2020-08-17 2023-10-03 Watts Regulator Co. Backflow prevention assembly with a linkage
US11739507B2 (en) 2020-12-09 2023-08-29 Watts Regulator Co. Test cock with integrated extraction tool
USD1021000S1 (en) 2021-08-17 2024-04-02 Watts Regulator Co. Valve assembly and body for same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693932A (en) * 1950-04-17 1954-11-09 Lorenzo A Richards Vacuum operated diaphragm valve
US2946341A (en) * 1957-02-21 1960-07-26 Sullivan Valve & Engineering Co Unidirectional check valve
US3276465A (en) * 1963-01-18 1966-10-04 Donald G Griswold Backflow prevention device and relief valve control
US3283772A (en) * 1964-02-04 1966-11-08 Donald G Griswold Backflow prevention device with improved pressure sensing means
US3321173A (en) * 1964-02-27 1967-05-23 United Aircraft Corp Low flow valve
US3461913A (en) * 1966-08-31 1969-08-19 Dole Valve Co Car heater valve

Also Published As

Publication number Publication date
US3837358A (en) 1974-09-24

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